I'm really stress I hate having a uncertain future, when I think that things are going to work out…

I'm really stress I hate having a uncertain future, when I think that things are going to work out between me and my SO he does something or say something that make me think I should start planning to be with out him. I start my new job next week and although I'm happy about it I'm unsure on what I'm going to do with the baby when she is born. I don't want to put her daycare at 2 months but if me and him break up I'm going to have too. I'm unhappy with him sometimes I feel like I'm settling because I need his help. I don't want to be with someone that I don't trust and we argued every other day . He said that he would take off work when she is two months so I can work and he would care for our daughter. I make enough money to pay all the bills so it would work it out but I don't know if I can deal with him